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Author: Arthur T. Winfree
Publisher: Macmillan
ISBN: 071675018X
Category : Science
Languages : en
Pages : 219
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Book Description
Explores the many aspects of circadian rhythms, from jet lag to biorhythms to "forbidden phases" of sleep when one cannot awaken spontaneously.
Author: Arthur T. Winfree
Publisher: Macmillan
ISBN: 071675018X
Category : Science
Languages : en
Pages : 219
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Book Description
Explores the many aspects of circadian rhythms, from jet lag to biorhythms to "forbidden phases" of sleep when one cannot awaken spontaneously.
Author: Arthur T. Winfree
Publisher: Macmillan + ORM
ISBN: 1466813954
Category : Science
Languages : en
Pages : 341
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Book Description
"A clock," writes Arthur T. Winfree, "is not much good if you can't pull out its stem and set it." Similarly, the most critical property of biological clocks--which rhythmically organize the processes of life--is their ability to reset on cue. This ability allows enables biological clocks to regain synchrony with a changing environment (as when we travel across time zones) or to maintain the alignment between certain physiological rhythms and the natural solar day. In The Timing of Biological Clocks, Winfree explores circadian rhythms. In reporting experiments on animals, plants, and single cells, he not only illustrates the principles that guide the resetting of biological clocks but reveals that each of these clocks has a vulnerable phase, a moment in each "turn of the dial" when a cueing stimulus of a particular intensity results in an abnormal, unpredictable resetting--perhaps even annihilating the clock's rhythm entirely. A singular feature of the author's exploration of these phenomena is his use of a range of colors to represent the passage of cyclic time. By this device, Winfree not only removes the purely arbitrary discontinuity of a conventional clock dial but makes reasoning about the real discontinuities of biological clocks transparently clear.
Author: Leon Kreitzman
Publisher: Profile Books
ISBN: 1847653723
Category : Science
Languages : en
Pages : 288
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Book Description
Popular science at its most exciting: the breaking new world of chronobiology - understanding the rhythm of life in humans and all plants and animals. The entire natural world is full of rhythms. The early bird catches the worm -and migrates to an internal calendar. Dormice hibernate away the winter. Plants open and close their flowers at the same hour each day. Bees search out nectar-rich flowers day after day. There are cicadas that can breed for only two weeks every 17 years. And in humans: why are people who work anti-social shifts more illness prone and die younger? What is jet-lag and can anything help? Why do teenagers refuse to get up in the morning, and are the rest of us really 'larks' or 'owls'? Why are most people born (and die) between 3am-5am? And should patients be given medicines (and operations) at set times of day, because the body reacts so differently in the morning, evening and at night? The answers lie in our biological clocks the mechanisms which give order to all living things. They impose a structure that enables us to change our behaviour in relation to the time of day, month or year. They are reset at sunrise and sunset each day to link astronomical time with an organism's internal time.
Author: Till Roenneberg
Publisher: Harvard University Press
ISBN: 0674069692
Category : Science
Languages : en
Pages : 313
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Book Description
Winner of a British Medical Association Book Award A Brain Pickings Best Science Book of the Year Early birds and night owls are born, not made. Sleep patterns may be the most obvious manifestation of the highly individualized biological clocks we inherit, but these clocks also regulate bodily functions from digestion to hormone levels to cognition. Living at odds with our internal timepieces, Till Roenneberg shows, can make us chronically sleep deprived and more likely to smoke, gain weight, feel depressed, fall ill, and fail geometry. By understanding and respecting our internal time, we can live better. “Internal Time is a cautionary tale—actually a series of 24 tales, not coincidentally. Roenneberg ranges widely from the inner workings of biological rhythms to their social implications, illuminating each scientific tutorial with an anecdote inspired by clinical research...Written with grace and good humor, Internal Time is a serious work of science incorporating the latest research in chronobiology...[A] compelling volume.” —A. Roger Ekirch, Wall Street Journal “This is a fascinating introduction to an important topic, which will appeal to anyone who wishes to delve deep into the world of chronobiology, or simply wonders why they struggle to get a good night’s sleep.” —Richard Wiseman, New Scientist
Author: Vinod Kumar
Publisher: Springer
ISBN: 8132236882
Category : Science
Languages : en
Pages : 663
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Book Description
This book is a concise, comprehensive and up-to-date account of fundamental concepts and potential applications of biological timekeeping mechanisms in animals and humans. It also discusses significant aspects of the organization and importance of timekeeping mechanisms in both groups. Divided into seven sections, it addresses important aspects including fundamental concepts; animal and human clocks; clock interactions; clocks and metabolism and immune functions; pineal, melatonin and timekeeping; and clocks, photoperiodism and seasonal behaviours. The book also focuses on biological clock applications in a 24x7 human society, particularly in connection with life-style associated disorders like obesity and diabetes. It is a valuable resource for advanced undergraduates, researchers and professionals engaged in the study of the science of biological timekeeping.
Author: Urs Albrecht
Publisher: Springer Science & Business Media
ISBN: 1441912622
Category : Science
Languages : en
Pages : 306
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Book Description
With the invitation to edit this volume, I wanted to take the opportunity to assemble reviews on different aspects of circadian clocks and rhythms. Although most c- tributions in this volume focus on mammalian circadian clocks, the historical int- duction and comparative clocks section illustrate the importance of various other organisms in deciphering the mechanisms and principles of circadian biology. Circadian rhythms have been studied for centuries, but only recently, a mole- lar understanding of this process has emerged. This has taken research on circadian clocks from mystic phenomenology to a mechanistic level; chains of molecular events can describe phenomena with remarkable accuracy. Nevertheless, current models of the functioning of circadian clocks are still rudimentary. This is not due to the faultiness of discovered mechanisms, but due to the lack of undiscovered processes involved in contributing to circadian rhythmicity. We know for example, that the general circadian mechanism is not regulated equally in all tissues of m- mals. Hence, a lot still needs to be discovered to get a full understanding of cir- dian rhythms at the systems level. In this respect, technology has advanced at high speed in the last years and provided us with data illustrating the sheer complexity of regulation of physiological processes in organisms. To handle this information, computer aided integration of the results is of utmost importance in order to d- cover novel concepts that ultimately need to be tested experimentally.
Author: S. Halle
Publisher: Springer Science & Business Media
ISBN: 9783540592440
Category : Nature
Languages : en
Pages : 352
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Book Description
Environmental conditions change considerably in the course of 24 h with respect to abiotic factors and intra- and interspecific interactions. These changes result in limited time windows of opportunity for animal activities and, hence, the question of when to do what is subject to fitness maximisation. This volume gives a current overview of theoretical considerations and empirical findings of activity patterns in small mammals, a group in which the energetic and ecological constraints are particularly severe and the diversity of activity patterns is particularly high. Following a comparative ecological approach, for the first time activity timing is consequently treated in terms of behavioural and evolutionary ecology, providing the conceptual framework for chronoecology as a new subdiscipline within behavioural ecology. An extensive Appendix gives an introduction to methods of activity modelling and to tools for statistical pattern analysis.
Author: Susan Binkley
Publisher: CRC Press
ISBN: 100015968X
Category : Medical
Languages : en
Pages : 240
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Book Description
Biological Clocks introduces the subject of human chronobiology. It describes biological clocks; why we have clocks; how biological clocks relate to sleep disorders, depression, and jet lag; and how the reader can measure his/her own rhythms.
Author: John A. Michon
Publisher: Springer Science & Business Media
ISBN: 3642704913
Category : Computers
Languages : en
Pages : 322
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Book Description
This book is the result of the International Workshop on Time, Mind, and Behavior, which was held at the University of Groningen in September 1984. The aim of the workshop was to produce an up to date review of the state of the art in the field of time psychology. The rapid development of a cognitive outlook in experimental psychology has, among other things, un derlined the need for a reconsideration of time experience, the coding and representation of temporal information, and the timing of complex re sponses. Since the publication of Paul Fraisse's classical Psychologie du Temps in 1957, time psychology has slowly but steadily drawn an in creasing amount of attention, to a point where it now seems to be incorpo rated into the mainstream of research. At the same time a noticeable ten dency for a renewed general interest in time can also be traced in several other disciplines. These two observations supported our belief that it was time for a review of the sort we had in mind. At the close of 1983 we completed a project supported by the Dutch Organization for the Advancement of Pure Research in which we had stud ied the coding and retrieval of temporal information. This provided us with a plausible pretense for organizing a workshop. Around Christmas time 1983 we were able to mail a preliminary invitation to a number of our colleagues whom we knew to be currently active in the field.
Author: Martin C. Moore-Ede
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 536
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Book Description
